CN102839435B - Straight saw-toothed polyester fiber and preparation method thereof - Google Patents
Straight saw-toothed polyester fiber and preparation method thereof Download PDFInfo
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- CN102839435B CN102839435B CN201210365194.6A CN201210365194A CN102839435B CN 102839435 B CN102839435 B CN 102839435B CN 201210365194 A CN201210365194 A CN 201210365194A CN 102839435 B CN102839435 B CN 102839435B
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- polyester fiber
- spinneret orifice
- zigzag
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Abstract
The invention discloses a straight saw-toothed polyester fiber and a preparation method thereof. Spinneret orifices of a spinneret plate are of straight saw-toothed shape; each of the spinneret orifices comprises four same triangular holes; the triangular holes are mutually communicated or separated; each edge of the triangular holes is a 8-10-degree radian concave curve; the length-width ratio of each of the spinneret orifices is (4-6):1; the slowly cooling and the lateral air-blowing cooling are combined; an inclined angle between an air-blowing direction of lateral air-blowing and a spinneret micro-hole of the saw-toothed spinneret plate is at 15-30 degrees; and a nozzle and an oil plate are combined for feeding oil according to an oil feeding bundling technology. The straight saw-toothed polyester fiber prepared according to the invention is high in degree of profile and has excellent gloss effect of a straight or flat fiber and the effects of moisture absorbing and moisture conducting properties and moisture-keeping ventilating functional characteristics of a cross-shaped fiber. The textile is endowed with various advantaged properties, such as gloss, fluffiness, moisture adsorption, elasticity, hand feel, and the like.
Description
Technical field
The present invention relates to a kind of polyester fiber and manufacture method thereof of odd-shaped cross section, especially relate to a kind of polyester fiber and the manufacture method thereof with different sawtooth pattern micro-grooves odd-shaped cross section.
Background technology
The common process of manufacture of profiled filament in synthetic fiber spinnerets has multiple cross section spinneret orifice corresponding with the cross section of fiber, spinning melt first sprays from the special-shaped spinneret orifice spinnerets, as-spun fibre is formed, as-spun fibre stretched processing and make the special-shaped synthetic fiber similar to spraying an irregularly-shaped hole cross sectional shape again through cooling curing.Synthetic fiber are generally circle hole shape fiber, and its inside is solid construction, and arrangement closely, hygroscopicity, chromatophilia are poor, and easily form diffuse reflection when light is irradiated to surface, and gloss is poor, therefore, the wearing comfort of its fabric is bad, is difficult to the needs meeting people.There are triangle, trilobal, pentagon, cross and in-line or pancake etc. in the cross section of the profiled filament of industrialization at present, the shape that general profiled filament then only has single-phase same, be difficult to play several functions simultaneously, as triangle, trilobal, pentagon fiber have the effect of little prism, combine once again after making natural daylight light splitting, thus the gloss sent as silk, give special sensation, but its moisture absorption performance is poor; And although in-line or pancake have better luster effect, its moisture absorption performance is poor.And the capillarity that the groove structure on C shape, H-shaped, cross fibre surface produces can have good moisture absorbing and sweat releasing effect, but gloss is not good enough.Therefore, the profiled filament that prior art provides can not possess good luster and the various advantage performance such as good hygroscopicity simultaneously, thus has influence on wearability of fabric and stylistic effects.
Summary of the invention
The object of the invention is to solve prior art Problems existing, a kind of effect simultaneously possessing in-line or pancake and cross fibre be provided, have that degree of profile is high, moisture absorption performance and the good word zigzag polyester fiber of dyeability and preparation method thereof.
The technical scheme realizing the object of the invention is to provide a kind of preparation method of a word zigzag polyester fiber, comprise polyester slice drying, screw rod melting, spinning manifold, measuring pump, filament spinning component, melt extrusion, cooling forming, the boundling that oils, drawing-off, HEAT SETTING and coiling and molding technique, concrete technology condition is: described melt extrusion technique, the spinneret orifice of its spinnerets is a word zigzag, each spinneret orifice comprises four identical delthyriums, is interconnected or has interval between delthyrium; Each limit of delthyrium is the sag vertical curve of 8 ~ 10 ° of radians; The length-width ratio of each spinneret orifice is 4 ~ 6:1; Described cooling formation process, adopts Xu Lenghe lateral blowing cooling combination, and Xu Lengqu is highly 120 ~ 150mm Xu cold-zone temperature is 310 ± 3 DEG C; The angle (θ) of the blowing direction of lateral blowing and the spinneret orifice of zigzag spinnerets is in 15 ~ 30 °, and lateral blowing speed is 0.4 ~ 0.5m/s, and lateral blowing temperature is 22 ± 2 DEG C; The described boundling technique that oils, adopts nozzle and food tray to combine and oils.
In technical solutions according to the invention, polyester slice inherent viscosity is 0.648dl/g; Hole count on spinnerets is 24f ~ 72f; Spinning temperature is 288 ~ 292 DEG C; First heat roller temperature of heat setting process is 85 ~ 93 DEG C, and the second heat roller temperature is 125 ~ 130 DEG C; Winding speed 4300 ~ the 4800m/min of coiling and molding technique.
The one one word zigzag polyester fiber obtained by above-mentioned preparation method, its filament number is 1.5dtex ~ 5.0dtex; Fracture strength is 3.5 ~ 4.0cN/dtex, and elongation at break is 20 ~ 30%.
Existing spinnerets technology spinning in-line fiber or pancake fiber only have single-phase with cross sectional shape and function, can not produce the product simultaneously possessing in-line or pancake and cross fibre effect.The micropore of spinnerets of the present invention adopts a word zigzag, coordinate corresponding process conditions, the degree of profile producing the polyester fiber obtained is large, possess in-line or pancake good gloss effect and cross fibre moisture absorption performance and moisturizing airing function characteristic and effect simultaneously, the various advantage performances such as fabric sheen, bulkiness, hygroscopicity, elasticity and feel can have been given.
Compared with prior art, the invention has the beneficial effects as follows:
1, a word zigzag polyester fiber cross section prepared by the present invention has three zigzag micro-grooves pore shapes, the zigzag fashion making fiber indulge surface distributed can form many micro-grooves and form good capillary wicking, possesses degree of profile high, specific area is large, fiber dyeing performance is good, fiber is more easily painted, and full color, gloss is beautiful, between fiber, voidage is large simultaneously, soft, light weight, the performance of wide coverage, fiber and the fabric made thereof is made to have good Moisture absorption & moisture conductivity and water retention rate is high and gas permeability, resilience, warmth retention property, feel is sliding soft, the functional characteristics such as the wearing comfort that the soft grade of gloss is good and super emulation fiber effects.
2, to have production cost low in the present invention, cost performance and the feature that practical value is high and wearability is good, the profiled filament produced can in a large number in woven, braided fabric, and as produced cambric, poult-de-soie, imitative thin silk, imitating the product such as thin,tough silk and underwear dress ornament, market prospects are good.
Accompanying drawing explanation
The structural representation of the word zigzag spinnerets micropore that Fig. 1 provides for the embodiment of the present invention 1;
The pore arrangement schematic diagram of the spinnerets that Fig. 2 provides for the embodiment of the present invention 1;
Fig. 3 is the schematic diagram that the embodiment of the present invention 1 prepares spinneret orifice in a word zigzag polyester fiber lateral blowing technique on spinnerets and melt stream cooling quench direction;
The cross sectional shape schematic diagram of the word zigzag polyester fiber that Fig. 4 provides for the embodiment of the present invention 1;
The structural representation of the word zigzag spinnerets micropore that Fig. 5 provides for the embodiment of the present invention 2;
The cross sectional shape schematic diagram of the word zigzag polyester fiber that Fig. 6 provides for the embodiment of the present invention 2;
In figure, 1, lateral blowing; 2, spinneret orifice; 3, spinnerets.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment 1
Embodiment adopts melt spinning stretching one-step method, by the input measuring pump of polyester slice melt after screw rod melting and filament spinning component, melt extrudes formation melt stream from there being the spinnerets of 36 spinneret orifices, be shaped through Xu Lengqu and lateral blowing cooling zone cooling curing, boundling oils, drawing-off and HEAT SETTING, coiling and molding, an obtained novel word zigzag polyester fiber.
See accompanying drawing 1, it is the structural representation of the word zigzag spinnerets micropore that the present embodiment provides; Spinneret orifice is a word zigzag, and each spinneret orifice is made up of four identical delthyriums, is interconnected between delthyrium, and 3 limits of delthyrium are the sag vertical curve containing radian, and radian measure beta is 8.04 °; The length of each spinneret orifice is 0.335mm, and the length-width ratio of spinneret orifice is 4:1.
See accompanying drawing 2, it is the pore arrangement schematic diagram of the spinnerets that the present embodiment provides; See accompanying drawing 3, it is the schematic diagram that the present embodiment prepares spinneret orifice in a word zigzag polyester fiber lateral blowing technique on spinnerets and melt stream cooling quench direction; As can be seen from Fig. 2 and 3, on spinnerets 3, spinneret orifice 2 is distribution mode arranged in parallel, the spinneret orifice of spinnerets and melt stream cold side dry 1 blowing direction have an angle theta, θ is 25 ° in the present embodiment.
Spinning technique working process parameter and performance indications are: polyester slice inherent viscosity is 0.648dl/g, spinning temperature 291 DEG C, by structure and the arrangement mode of a word zigzag spinnerets micropore shown in Fig. 1 and Fig. 2, extrude formation melt stream, the blowing direction that spinneret orifice and melt stream cold side are dried has an angle theta, and θ is 25 ° in the present embodiment; Xu Lengqu height 130mm, Xu Lengqu temperature 310 DEG C, lateral blowing speed 0.50m/s, lateral blowing temperature 22 DEG C, first heat roller temperature 93 DEG C, the second heat roller temperature 126 DEG C, winding speed 4500m/min, the fracture strength spinning the 167dtex/36f mono-word zigzag polyester fiber obtained is 3.89cN/dtex, and elongation at break is 25%.
See accompanying drawing 4, it is the cross sectional shape schematic diagram of the word zigzag polyester fiber that the present embodiment provides; As seen from Figure 4, a prepared word zigzag polyester fiber cross section has three zigzag micro-grooves pore shapes, degree of profile is high, and specific area is large, and the zigzag fashion that surface distributed indulged by fiber can form many micro-grooves and form good capillary wicking.
Embodiment 2
In the present embodiment, after screw rod melting, melt extrudes formation melt stream from there being the spinnerets of 72 spinneret orifices, is shaped through Xu Lengqu and lateral blowing cooling zone cooling curing, boundling oils, drawing-off and HEAT SETTING, to coiling and molding, an obtained novel word zigzag polyester fiber.
See accompanying drawing 5, it is the structural representation of the word zigzag spinnerets micropore that the present embodiment provides; Spinneret orifice is a word zigzag, and each spinneret orifice is made up of four identical delthyriums, has small―gap suture d to be 0.005mm between delthyrium, and 3 limits of delthyrium are the sag vertical curve containing radian, and radian measure beta is 9 °; The length of each spinneret orifice is 0.335mm, and the length-width ratio of spinneret orifice is 4.18:1.Spinneret orifice on spinnerets is centripetal arrangement; The blowing direction that spinneret orifice and melt stream cold side are dried has an angle theta, and θ is 20 ° in the present embodiment.
Spinning technique working process parameter and performance indications are: polyester slice inherent viscosity is 0.648dl/g, spinning temperature 291 DEG C, Xu Lengqu is highly 150mm, Xu Lengqu temperature 310 DEG C, lateral blowing speed 0.47m/s, lateral blowing temperature 22 DEG C, first heat roller temperature 89 DEG C, the second heat roller temperature 126 DEG C, winding speed 4500m/min, the fracture strength spinning the 110dtex/72f mono-word zigzag polyester fiber obtained is 3.78cN/dtex, and elongation at break is 26%.
See accompanying drawing 6, it is the cross sectional shape schematic diagram of the word zigzag polyester fiber that the present embodiment provides; As seen from Figure 6, a prepared word zigzag polyester fiber cross section has three zigzag micro-grooves pore shapes, degree of profile is high, and specific area is large, and the zigzag fashion that surface distributed indulged by fiber can form many micro-grooves and form good capillary wicking.
Embodiment 3
Embodiment adopts melt spinning stretching one-step method, by the input measuring pump of polyester slice melt after screw rod melting and filament spinning component, formation melt stream is extruded from spinnerets micropore, be shaped through Xu Lengqu and lateral blowing cooling zone cooling curing, boundling oils, drawing-off and HEAT SETTING, coiling and molding, an obtained word zigzag polyester fiber.
Spinning technique working process parameter and performance indications are: polyester slice inherent viscosity is 0.648dl/g, spinning temperature 291 DEG C; Spinnerets is provided with 24 spinneret orifices, and the structure of spinneret orifice is see accompanying drawing 1, and spinneret orifice is a word zigzag, and each spinneret orifice is made up of four identical delthyriums, is interconnected between delthyrium, and 3 limits of delthyrium are the sag vertical curve containing radian, and radian measure beta is 8 °; The length of each spinneret orifice is 0.335mm, and the length-width ratio of spinneret orifice is 4:1.
Xu Lengqu is highly 120mm, Xu Lengqu temperature 310 DEG C, lateral blowing speed 0.43m/s, lateral blowing temperature 22 DEG C, and the blowing direction that the spinneret orifice of spinnerets and melt stream cold side are dried has an angle theta, and θ is 15 ° in the present embodiment; First heat roller temperature 86 DEG C, the second heat roller temperature 126 DEG C, winding speed 4500m/min, the fracture strength spinning the 76dtex/24f mono-word zigzag polyester fiber obtained is 3.96cN/dtex, and elongation at break is 23%.
Claims (2)
1. the preparation method of a word zigzag polyester fiber, comprise polyester slice drying, screw rod melting, spinning manifold, measuring pump, filament spinning component, melt extrusion, cooling forming, the boundling that oils, drawing-off, HEAT SETTING and coiling and molding technique, it is characterized in that:
Described melt extrusion technique, the spinneret orifice of its spinnerets is a word zigzag, and each spinneret orifice comprises four identical delthyriums, is interconnected or has interval between delthyrium; Each limit of delthyrium is the sag vertical curve of 8 ~ 10 ° of radians; The length-width ratio of each spinneret orifice is 4 ~ 6:1;
Described cooling formation process, adopt Xu Lenghe lateral blowing cooling combination, Xu Lengqu is highly 120 ~ 150mm, Xu Lengqu temperature is 310 ± 3 DEG C; The angle (θ) of the blowing direction of lateral blowing and the spinneret orifice of zigzag spinnerets is in 15 ~ 30 °, and lateral blowing speed is 0.4 ~ 0.5m/s, and lateral blowing temperature is 22 ± 2 DEG C;
The described boundling technique that oils, adopts nozzle and food tray to combine and oils;
Wherein, polyester slice inherent viscosity is 0.648dl/g; Hole count on spinnerets is 24f ~ 72f;
First heat roller temperature of heat setting process is 85 ~ 93 DEG C, and the second heat roller temperature is 125 ~ 130 DEG C; Winding speed 4300 ~ the 4800m/min of coiling and molding technique;
The filament number of product is 1.5dtex ~ 5.0dtex; Fracture strength is 3.5 ~ 4.0cN/dtex, and elongation at break is 20 ~ 30%.
2. the preparation method of an a kind of word zigzag polyester fiber according to claim 1, is characterized in that: spinning temperature is 288 ~ 292 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210365194.6A CN102839435B (en) | 2012-09-26 | 2012-09-26 | Straight saw-toothed polyester fiber and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210365194.6A CN102839435B (en) | 2012-09-26 | 2012-09-26 | Straight saw-toothed polyester fiber and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102839435A CN102839435A (en) | 2012-12-26 |
| CN102839435B true CN102839435B (en) | 2015-01-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102936774A (en) * | 2012-11-23 | 2013-02-20 | 苏州巨源纤维科技有限公司 | Fiber |
| CN103774256A (en) * | 2014-02-14 | 2014-05-07 | 苏州大学 | Single wave linear nylon 6 filament yarn and preparation method thereof |
| CN103774255B (en) * | 2014-02-14 | 2016-10-05 | 苏州大学 | Linear chinlon 6 filament of a kind of double wave wave and preparation method thereof |
| CN108914231B (en) * | 2018-08-13 | 2021-02-26 | 福建永荣锦江股份有限公司 | Nylon 6 fully drawn yarn with curled appearance and production method thereof |
| CN109853058B (en) * | 2018-12-28 | 2022-03-18 | 广东省化学纤维研究所 | In-line type three-difference composite fiber and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201109807Y (en) * | 2007-09-03 | 2008-09-03 | 张家港市龙杰特种化纤有限公司 | Terylene flat thread |
| CN101634052A (en) * | 2009-08-24 | 2010-01-27 | 浙江海利得新材料股份有限公司 | Process for producing polyester industrial fiber for processing safe air bag of automobile |
| CN102586912A (en) * | 2011-12-12 | 2012-07-18 | 绍兴文理学院元培学院 | Method for preparing metachromatic linear flat polyester filaments |
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- 2012-09-26 CN CN201210365194.6A patent/CN102839435B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201109807Y (en) * | 2007-09-03 | 2008-09-03 | 张家港市龙杰特种化纤有限公司 | Terylene flat thread |
| CN101634052A (en) * | 2009-08-24 | 2010-01-27 | 浙江海利得新材料股份有限公司 | Process for producing polyester industrial fiber for processing safe air bag of automobile |
| CN102586912A (en) * | 2011-12-12 | 2012-07-18 | 绍兴文理学院元培学院 | Method for preparing metachromatic linear flat polyester filaments |
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Granted publication date: 20150128 Termination date: 20200926 |